/*
 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
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package jdk.jfr.tool;

import java.util.Comparator;
import jdk.jfr.consumer.RecordedEvent;

public class EndTicksComparator implements Comparator<RecordedEvent> {
    public long readEndTicks(RecordedEvent event) {
        long timestamp = event.getLong("startTime");
        if (event.hasField("duration")) {
            timestamp += event.getLong("duration");
        }
        return timestamp;
    }

    @Override
    public int compare(RecordedEvent a, RecordedEvent b) {
        return Long.compare(readEndTicks(a), readEndTicks(b));
    }
}
